Content Provider
ScienceDirect (Elsevier - via Crossref)
905
Wiley Online Library
806
ScienceDirect (Elsevier)
461
Informa (via Crossref)
384
Wiley Online Library (via Crossref)
360
Springer Nature (via Crossref)
331
Informa
172
Cambridge University Press
64
SAGE Publications (via Crossref)
62
University of Chicago Press (via Crossref)
61
De Gruyter (via Crossref)
54
SAGE Publications
42
The University of Queensland: UQ eSpace
38
Utrecht University Repository
37
Cambridge University Press (via Crossref)
34
Schweizerbart Science Publishers (via Crossref)
32
Istituto Nazionale di Fisica Nucleare (INFN): Open Access Repository
26
Queen's University Belfast Research Portal
19
Caltech Authors (California Institute of Technology)
13
De Gruyter
12
University of Liège: ORBi (Open Repository and Bibliography)
11
ICE Virtual Library (ICE Publishing - via Crossref)
9
Schweizerbart Science Publishers
9
University of Bath's research portal
8
ICE Virtual Library (ICE Publishing)
7
IRIS Università degli Studi di Bologna (CRIS - Current Research Information System)
7
Aberdeen University Research Archive (AURA)
6
University of Zurich (UZH): ZORA (Zurich Open Repository and Archive
6
Discovery - University of Dundee Online Publications
5
Sciendo (de Gruyter - via CrossRef)
5
University of Hertfordshire: UH Research Archive
4
University of St Andrews: Digital Research Repository
4
Università degli Studi di Napoli "Parthenope": CINECA IRIS
4
Université de Lausanne (UNIL): Serval - Serveur académique lausannois
4
University of Nottingham: Repository@Nottingham
3
Università Ca’ Foscari Venezia: ARCA (Archivio Istituzionale della Ricerca)
3
Università degli Studi di Milano-Bicocca: BOA (Bicocca Open Archive)
3
Università degli studi di Torino: AperTo (Archivio Istituzionale ad Accesso Aperto)
3
Anagrafe della Ricerca d'Ateneo (Universitá degli studi Roma Tre)
2
DIAL@UCLouvain (Université catholique de Louvain)
2
DIAL@USL-B (Université Saint-Louis, Bruxelles)
2
IRInSubria - Institutional Repository Insubria (Università degli Studi dell’Insubria)
2
Inderscience Publishers (via Crossref)
2
OpenMETU (Middle East Technical University)
2
Opin vísindi (Iceland)
2
University of Chicago Press
2
Università degli Studi della Campania "Luigi Vanvitelli": CINECA IRIS V:
2
ARUd'A - Archivio Istituzionale della ricerca dell'università Chieti-Pescara (IRIS)
1
Bentham Science Publishers (via Crossref)
1
DSpace@MIT (Massachusetts Institute of Technology)
1
more ...